Electrical Machines When pure inductive load is connected to the alternator, what is the effect of armature reaction? None of these Magnetization Cross magnetization Demagnetization None of these Magnetization Cross magnetization Demagnetization ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In shunt dc motor the direction of rotation of the motor will reversed. When none of above. only armature terminals are reversed. either field terminals are reversed or armature terminals are reversed. only field terminals are changed. none of above. only armature terminals are reversed. either field terminals are reversed or armature terminals are reversed. only field terminals are changed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Demagnetization effects which of the following? reduction in main field flux reduces the terminal voltage commutation both B and C reduction in main field flux reduces the terminal voltage commutation both B and C ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slight curvature at the lower end of the OCC of a self excited DC generator is due to high field resistance. high speed. magnetic inertia. residual flux. high field resistance. high speed. magnetic inertia. residual flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 250 volt dc series motor having an armature resistance of 0.2 Ω takes a load current of 60 A. What will be the torque produced at the shaft of the motor? Consider brush drop of 1V. 234.76 N-m. 133.22 N-m can not be determined. 266.20 N-m. 234.76 N-m. 133.22 N-m can not be determined. 266.20 N-m. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What are the starters used for starting of cage motors? Auto transformer starter. All of these. DOL starter. Star-delta starter. Auto transformer starter. All of these. DOL starter. Star-delta starter. ANSWER DOWNLOAD EXAMIANS APP
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